/ Dictionary / Index I -isation: Meaning and Definition of Find definitions for: -isation Pronunciation: [key] — Chiefly Brit. Chiefly Brit. var. of Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isatin isauxesis Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language